{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-46300",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-46300",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-05-23T11:44:02.231Z",
    "updatedAt": "2026-10-19T19:36:57.065Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "net: skbuff: preserve shared-frag marker during coalescing",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: skbuff: preserve shared-frag marker during coalescing\n\nskb_try_coalesce() can attach paged frags from @from to @to.  If @from\nhas SKBFL_SHARED_FRAG set, the resulting @to skb can contain the same\nexternally-owned or page-cache-backed frags, but the shared-frag marker\nis currently lost.\n\nThat breaks the invariant relied on by later in-place writers.  In\nparticular, ESP input checks skb_has_shared_frag() before deciding\nwhether an uncloned nonlinear skb can skip skb_cow_data().  If TCP\nreceive coalescing has moved shared frags into an unmarked skb, ESP can\nsee skb_has_shared_frag() as false and decrypt in place over page-cache\nbacked frags.\n\nPropagate SKBFL_SHARED_FRAG when skb_try_coalesce() transfers paged\nfrags.  The tailroom copy path does not need the marker because it copies\nbytes into @to's linear data rather than transferring frag descriptors.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3599e6b3cc1ada96883d496a50a210d3afbb6987"
            },
            {
              "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2f2b16022a2e10ca7bccfb98db5ed2ec0f72641c"
            },
            {
              "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9d3e5fd19fe1063bf607219e8562fbd567b8e8d5"
            },
            {
              "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "78bf6b6bb19541d19fbda6242e7cfe2c682763c0"
            },
            {
              "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "760e1addc27ba1a7beb4a0a7e8b3e9ec49e7a34e"
            },
            {
              "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3bd9e113d50034db99d7ef69fd8e5242d15e414a"
            },
            {
              "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3884358a9286b17f389a72b1426fc4547c23c111"
            },
            {
              "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f84eca5817390257cef78013d0112481c503b4a3"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.9",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.9"
            },
            {
              "version": "5.10.257",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.208",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.174",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.141",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.91",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.33",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}